Update Qt to 4.8.5 and Qt Creator to 2.8.0.
Proudly brought to you by the KDE on FreeBSD team, with commits by makc@,
Schaich Alonso and yours truly.
Besides the tons of upstream fixes, we have mkspecs for GCC 4.9 and clang33
(from ports), staging support in the Makefiles and dependency fixes related
to pkg-config.
Many thanks to the people who helped test the ports using our area51
repository, and also to the people who provided patches and bug reports via
GNATS!
PR: ports/180615
ports/181921
ports/182049

Rely on bsdtar to autodetermine the format of the distfiles when possible
For a while now bsdtar is able to autotermine compression and archive format.
Let's then use tar directly instead of piping to tar.
Now USE_BZIP2 and USE_XZ only set EXTRACT_SUFX to the right format

The KDE on FreeBSD team is happy to update Qt to its 4.8.2 release.
The upstream changelog can be seen in
<https://qt.gitorious.org/qt/qt/blobs/4.8/dist/changes-4.8.2>.
Relevant changes include a few patches having been integrated upstream
and thus removed from the ports tree and some improved work on USE_QT4
in bsd.qt.mk.